Your basket is empty
On orders over £50*
Total inc. delivery and VAT
Total inc. delivery and exc. VAT
Calculate gas flow, packaged air conditioning and combustion efficiency in domestic and industrial situations.
Part number: 10462
An instrument designed to simplify the calculations for all the larger heat...
Part number: 10460
An instrument, simple and quick to use, which determines the heating requir...
Part number: 10461
Part number: 10459
This calculator gives the heat requirements of new homes built to meet the ...
Part number: 10464
A double-sided instrument for calculations relating to the flow of all gase...
Part number: 10463
Part number: 10467
This calculator is similar to the above giving the pressure loss in plastic...
Part number: 17357
Part number: 15763
The calculator is approved by the Air Conditioning Advisory Bureau.
Part number: 10468
The efficiency of a boiler is determined largely by the heat lost to any ex...
Part number: 10466
Request a catalogue, get your copy here. Enter your details here for discounts, promotions and more.
Unable to find a valid address for this postcode. Please enter address manually.
We respect your privacy and do not tolerate spam and will never sell, rent, lease or give away your information (name, address, email, etc) to any third party. Nor will we send you unsolicited email.
We accept the following payment methods
Shop online with confidence
BES Limited, Junction 6 Industrial Park, Electric Avenue, Birmingham, B6 7JJ © Copyright BES Limited registered in England No. 1202345 Registered Office: Regent House, Bath Avenue, Wolverhampton, WV1 4EG